how much energy is gained by an electron accelerated through potential difference of 3 ×10^2 V?

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Solution

The charge of electron e = 1.610^-19 C
the potential difference V = 310^2 volt

the energy gained by an electron = eV

E = (1.610^-19)(310^2)
E = (1.610^-19)(300)

E = 48010^-19 J

or

E = 4.8*10^-17 J

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